Firearm.



PATENTED NOV. 27, 1906. W. W. SMITH.

FIREARM.

APPLIOATION FILED une?. 1906.

TUHNEYS UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Nov. 27, 190B..

Application filed January 27, 1908. Serial No. 298,179;

`.To a/ZZ whom it may con/cern:

Be it lmown that I, WILLIAM WILSON SMITH, a citizen of the United States, and a resident of Trenton, in the county of Mercer and State of New'Jersey, have invented a newand' useful Improvement in Firearms, of which the following is a full, clear, and exact description.

The purpose of the invention is to provide al single or a double barrel gun with extension-barrels, said barrels` being provided with removable interchangeable muzzle-sections, which may be made in various lengths and bored1l to suit al1 field purposes, and to provide sim le and readily-operated means for attaciling the sections of the barrels and rendering them gas-tight Where they connect.

The invention consists` in the novel construction and combination of the several parts, as will be hereinafter fully set forth, A

and pointed out inthe claims.

Reference is to be had to the accompanying drawings', forming'a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a perspective view of a double barrel gun constructed in accordance with my invention. 2 is a plan view of the barrels where the sections connect. Fig. 3 is a longitudinal section' taken practically on the line 3 3 ofFi'g. 2. Fig. 4-isl-a4 longitudinal section taken substantially on the line 4 4 of Fig. 2 and Fig. 5 is a longitudinal section through a portion of a single barrel, illustrating the application of the invention to an old gull- A represents the stock of the gun, which is of the usual type, B the customary frame, and C the usual barrels, which in Figs. 1 and 2 are shown as two in number. These barrels are connected by a web 10, as usual; but the barrels- C are shorter than the ordinary barrels, and therefore. may be termed the main sections of the barrels, as each of the barrel-sections C is rovided with a removable muzzle-section D, as is clearly shown in the said Figs. 1 and 2. In a double-barrel the removable muzzle-sections D are connected by a web 11, corresponding to the web 10, connecting the main arrel-sections C, and the connecting-web of the removable muzzle-sections D sight 12.

The outer end portions ofthe main sections C of the barrels are interiorly increased in diis provided with an end ameter over the diameter of the remaining portions of the barrels, thus forminginterior annular shoulders-13', (best shown in Fig. 3;) and theb removable muzzle-sections D! of the barrels are exteriorly reduced at their-inner' l ends to form slip'4 members 14, adapted-'to slide in the interiorlyeenlargedf outer envd ortionsuof the main sections C of the barre to an engagement with the shoulders 133: therein, at which time the outer ends ofthe mainsections- C of the barrels engage with'` shouider-sections 15, formed upon: the muzzle-- sections D by the exterior reduction` ofthe said muzzle-sections, as isal'soshown imFi 3.

Various means may be ado tedl for hol the mainv sections C of the arnels and: the muzzle-sections D in their connected posi tions. The preferred'fmeans however; con sists in producing a' longitudinali sot 126' inl both the upper and the lower ortions4` ofthea webs 10 and 111 of the barre sections, the'- slots extendingfrom one barrellsectionrtothe other, as illustrated in Figs. 1i, 2, 3', and- 42. These slots 156 are provi ed with enlarged end ortions 117, and in= one ofthe said slots, usua y the upperone, a latch-bar 18=isseat ed, conformingto andilling the said slot, the said latch-bar being therefore rovided with' enlarged end sections 119", andt e end section of the latch-bar which is contained in the web of the mainl sections'C of the barreisds' pivoted therein by a= suitable pin 20; as=i`s-l shown in Figs. 2 and 4. The other end seotion of the latch-bar 18, or that section which extends over the web yof the muzzle-sections D, is held in place and is prevented from being jarred loose by means of a spring-latch 21, of any approved construction, located in the web 10 of the muzzle-sections D, being adapted to enter a suitable recess 22 in the lforward end 19 of the said latch-bar 18, as is shown in Figs. 2 and 4.

In order that the latch-bar may be readily lifted up to remove the muzzle-sections of the barrels from the main sections C, the forward end of the forward end portions of the oove 16 are more or less concaved or beve ed to permit the finger to enter, as is shown particularly at 23 in Fi s. 2 and 4.

In Fig. 5 I have ilustrated the manner in which a muzzle-section can be attached to the main section of a single barrel, wherein an interior shoulder 24 is roduced in the main barrel-section, and tige interiorly-enlaiged portion of this barrel-section is provi ed with a thread 25, which receives an ex- 'Seimas leprovided with an exterior shoulespondin to and for the same the shou der 15, heretofore dee two sections of the barrel are ming by producing a lug 28, for the lower portion of the main `he barrel and producing spaced 1e under portion of the muzzlethe barrel and in providing a other form of latch which is .e lug 28 and enters the space ugs 29. of the sectional gun-barrel the any desired length of barrel is yet the main or body portions leed not be more than twenty r inches long, thereby givin a various lengths of remova le nabling the arm to be carried f suit-case, if desired. If, for of main barrels twenty inches nployed and twenty-six inch ed, it is sim ly` necessary to six-inch muzz e-sections and a larged portion with twenty-six inch barrels is obonto any, desired change, as i be rendered'wide in scope by 's of sets of interchangeable l of different length and bored voses, as trap-shooting, iieldrush-shooting, such as fullor open, or a combination of ve mentioned. In fact, one for all manner of shooting f The device can be applied to all guns now in use by simply using a neat sleeve slipped over the sections of the barrels and screwed fast, especiall when the gun 1s a repeater and has a sing e barrel.

claun as Patent- 1. In firearms, a barrel com rising a main section ha fing the end thereo internally larged, and provided with a shoulder' at the `junction of the enlarged portion with the main lportion, interchangeable muzzle-sections aving reduced portions for enterin the enlarged provided wit reduced arts wit respect to `each other, said catch eing 1pivoted to the main section.

2. n firearms, va barrel com rising a main section having the end thereofinternallyenlar ed and screw-threaded, and

iprovided the enthe main portion, inter-y having reduced screw-threaded ortions for entering the en-` larged portion o the main section, and prod vwith a shoulder at the base of the reduced portion, and a catch for fixing parts with respect to each other, said catch" veing pivoted to the main section.

In testimony whereof I have signed my name to this speciication in the presence of two subscribing witnesses.

g any of the parts except atizle section or sections suit- WILLIAM WILSON SMITH' t in hand. There is always Witnesses:

the same tr' ger-pull, and NQRMANALFRED SMITH,

the gun, GEORGE ARIsoN WEBER.

arity in hand Having thus described my invention, IV new and desire to secure by Letters' ssv 

